Now, four years later, in a chilling repetition dozens of schoolgirls have been abducted from a boarding school in the village of Dapchi in Nigeria.

Heavily armed insurgents attacked the village on Monday as they entered on camouflaged trucks, according to witnesses. But accounts of the girls’ current whereabouts vary greatly.

Several parents and a government official said that the Nigerian military had rescued 76 schoolgirls and the dead bodies of 2, leaving 13 unaccounted for. But the local government of Yobe, where the abduction took place, released a statement saying 50 remained accounted for.

The Nigerian president, Muhammadu Buhari, has since taken to Twitter to assure the public that suitable action is being taken.

“I have directed the military and police to mobilise immediately to ensure that all the missing girls … are found,” Muhammadu Buhari posted on Wednesday night, two days after the attack. “I share the anguish of all the parents and guardians of the girls that remain unaccounted for.”

I have directed the Military and Police to mobilize immediately to ensure that all the missing girls of Government Girls Secondary School, Dapchi, are found. The Minister of Defence will also lead a Federal Government delegation to Yobe tomorrow, to ascertain the situation.

People fear the latest attack from Boko Haram is to prove they haven’t been defeated following a claim from the Nigerian government stating they had.

“Every time the government declares victory, people feel afraid because they know Boko Haram will launch more kidnaps to show that they haven’t been defeated,” Shehu Sani, a Nigerian MP and former human rights campaigner, told The Telegraph. “It just provokes them.”